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CVE-2020-27781

Status Candidate

Overview

User credentials can be manipulated and stolen by Native CephFS consumers of OpenStack Manila, resulting in potential privilege escalation. An Open Stack Manila user can request access to a share to an arbitrary cephx user, including existing users. The access key is retrieved via the interface drivers. Then, all users of the requesting OpenStack project can view the access key. This enables the attacker to target any resource that the user has access to. This can be done to even "admin" users, compromising the ceph administrator. This flaw affects Ceph versions prior to 14.2.16, 15.x prior to 15.2.8, and 16.x prior to 16.2.0.

Related Files

Ubuntu Security Notice USN-5128-1
Posted Nov 2, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5128-1 - Goutham Pacha Ravi, Jahson Babel, and John Garbutt discovered that user credentials in Ceph could be manipulated in certain environments. An attacker could use this to gain unintended access to resources. This issue only affected Ubuntu 18.04 LTS. It was discovered that Ceph contained an authentication flaw, leading to key reuse. An attacker could use this to cause a denial of service or possibly impersonate another user. This issue only affected Ubuntu 21.04. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2020-27781, CVE-2021-20288, CVE-2021-3509, CVE-2021-3524, CVE-2021-3531
SHA-256 | 27bb8e3234a0eb6c20785c85e3b051d5fba1fadbce8594e9f21d51168b84a3bf
Ubuntu Security Notice USN-4998-1
Posted Jun 25, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4998-1 - It was discovered that in some situations Ceph logged passwords from the mgr module in clear text. An attacker could use this to expose sensitive information. Goutham Pacha Ravi, Jahson Babel, and John Garbutt discovered that user credentials in Ceph could be manipulated in certain environments. An attacker could use this to gain unintended access. It was discovered that the Ceph dashboard was susceptible to a cross-site scripting attack. An attacker could use this to expose sensitive information or gain unintended access. Various other issues were also addressed.

tags | advisory, xss
systems | linux, ubuntu
advisories | CVE-2020-25678, CVE-2020-27781, CVE-2020-27839, CVE-2021-20288, CVE-2021-3509, CVE-2021-3524, CVE-2021-3531
SHA-256 | a3d9656a49f07ccf660b9f6006ed598b81e2aa94c36575e1f2fa281abef63f27
Gentoo Linux Security Advisory 202105-39
Posted May 27, 2021
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202105-39 - Multiple vulnerabilities have been found in Ceph, the worst of which could result in privilege escalation. Versions less than 14.2.21 are affected.

tags | advisory, vulnerability
systems | linux, gentoo
advisories | CVE-2020-10753, CVE-2020-1759, CVE-2020-1760, CVE-2020-25660, CVE-2020-25678, CVE-2020-27781, CVE-2021-20288
SHA-256 | 7ab3522f846f6a648172b2520a0ceaea2ea557ede4081b724f6d25d68464c1a9
Red Hat Security Advisory 2021-1518-01
Posted May 7, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1518-01 - Red Hat Ceph Storage is a scalable, open, software-defined storage platform that combines the most stable version of the Ceph storage system with a Ceph management platform, deployment utilities, and support services. The ceph-ansible package provides Ansible playbooks for installing, maintaining, and upgrading Red Hat Ceph Storage. Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, InfluxDB & OpenTSDB. The tcmu-runner packages provide a service that handles the complexity of the LIO kernel target's userspace passthrough interface. It presents a C plugin API for extension modules that handle SCSI requests in ways not possible or suitable to be handled by LIO's in-kernel backstores. Issues addressed include denial of service and server-side request forgery vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-12059, CVE-2020-13379, CVE-2020-27781, CVE-2021-3139
SHA-256 | e87fb4791772030f72c602aaae9c15e3ccdeb0c201ea244532321266dcf4337a
Red Hat Security Advisory 2021-0081-01
Posted Jan 12, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0081-01 - Red Hat Ceph Storage is a scalable, open, software-defined storage platform that combines the most stable version of the Ceph storage system with a Ceph management platform, deployment utilities, and support services. The ceph-ansible package provides Ansible playbooks for installing, maintaining, and upgrading Red Hat Ceph Storage. This package contains a new implementation of the original libtirpc, transport-independent RPC library for NFS-Ganesha. NFS-GANESHA is a NFS Server running in user space. It comes with various back-end modules provided as shared objects to support different file systems and name-spaces.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-25660, CVE-2020-25677, CVE-2020-27781
SHA-256 | 17dce88e2e15a0cea165212958e4b057227b0cd6687f9a062344666603c0b458
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